<template>
	<view class="container">
		<tui-show-empty v-if="couponList.length<=0" showType="NO_COUPON"></tui-show-empty>
		<view v-else>
			<tui-tabs :tabs="tabs" :currentTab="currentTab" selectedColor="#58C1E7" sliderBgColor="#58C1E7"
				@change="change" itemWidth="33.33333%" :isFixed="scrollTop>=0"></tui-tabs>
			<view class="tui-coupon-list" :class="{'tui-mtop':scrollTop>=0}">
				<view v-for="(item,i) in couponList" :key="i" v-show="currentTab==i">
					<view class="tui-coupon-item tui-top20" v-for="(coupon,j) in item.data" :key="j">
						<image src="/static/images/mall/bg_coupon_3x.png" class="tui-coupon-bg" mode="widthFix"></image>
						<image src="/static/images/mall/img_coupon_beused_3x.png" class="tui-coupon-sign"
							mode="widthFix" v-if="coupon.status===1"></image>
						<image src="/static/images/mall/img_coupon_failure_3x.png" class="tui-coupon-sign"
							mode="widthFix" v-if="coupon.status===2"></image>
						<view class="tui-coupon-item-left">
							<view :class="'tui-coupon-price-box ' + (coupon.status!=0?'tui-color-grey':'')">
								<view class="tui-coupon-price-sign" v-if="coupon.couponType==1">￥</view>
								<view class="tui-coupon-price tui-price-small" v-if="coupon.couponType==1">
									{{coupon.subPrice}}
								</view>
								<view class="tui-coupon-price tui-price-small" v-if="coupon.couponType==2">
									{{coupon.discount}}
								</view>
								<view class="tui-coupon-price-sign" v-if="coupon.couponType==2">折</view>
							</view>
							<view class="tui-coupon-intro">满{{coupon.minPrice}}元可用</view>
						</view>
						<view class="tui-coupon-item-right">
							<view class="tui-coupon-content">
								<view class="tui-coupon-title-box" v-if="coupon.limitType===0">
									<view :class="'tui-coupon-btn ' + (coupon.status!=0?'tui-bg-grey':'')">全场券</view>
									<view class="tui-coupon-title">全部商品可用</view>
								</view>
								<view class="tui-coupon-title-box" v-if="coupon.limitType===1">
									<view :class="'tui-coupon-btn ' + (coupon.status!=0?'tui-bg-grey':'')">指定商品</view>
									<view class="tui-coupon-title">指定商品可用</view>
								</view>
								<view class="tui-coupon-title-box" v-if="coupon.limitType===2">
									<view :class="'tui-coupon-btn ' + (coupon.status!=0?'tui-bg-grey':'')">指定品牌</view>
									<view class="tui-coupon-title">指定品牌可用</view>
								</view>
								<view class="tui-coupon-rule">
									<view class="tui-rule-box tui-padding-btm">
										<view class="tui-coupon-circle"></view>
										<view class="tui-coupon-text">不可叠加使用</view>
									</view>
									<view class="tui-rule-box">
										<view class="tui-coupon-circle"></view>
										<view class="tui-coupon-text">{{coupon.beginTime}} 至 {{coupon.endTime}}</view>
									</view>
								</view>
							</view>
						</view>
						<view class="tui-btn-box" v-if="coupon.status==0">
							<tui-button type="danger" @click="goIndex" width="146rpx" height="52rpx" :size="24"
								shape="circle" :plain="false">立即使用</tui-button>
						</view>
					</view>
					<!--加载loading-->
					<tui-loadmore v-if="couponList[i].loading" :index="3" type="red"></tui-loadmore>
					<tui-nomore v-if="!couponList[i].pullUpOn"></tui-nomore>
					<!--加载loading-->
				</view>
			</view>
		</view>
		<tui-fab :right="80" :bottom="100" icon="coupon" bgColor="#58C1E7" @click="couponCenter"></tui-fab>
	</view>
</template>

<script>
	const util = require("@/utils/util.js")
	export default {
		data() {
			return {
				tabs: [{
					name: "未使用"
				}, {
					name: "已使用"
				}, {
					name: "已过期"
				}],
				currentTab: 0,
				scrollTop: 0,
				//如果tabs数据是请求返回，则动态生成tabs数据
				couponList: [{
					loading: false,
					pullUpOn: true,
					pageIndex: 1,
					noData: false, //如果使用自定义无数据提示，则使用
					data: []
				}, {
					loading: false,
					pullUpOn: true,
					pageIndex: 1,
					noData: false,
					data: []
				}, {
					loading: false,
					pullUpOn: true,
					pageIndex: 1,
					noData: false,
					data: []
				}],
				//模拟请求返回数据
				requestData: []
			}
		},
		onShow: function(options) {
			this.getCouponList(this.currentTab)
		},
		onPullDownRefresh() {
			// 显示顶部刷新图标
			uni.showNavigationBarLoading();
			var that = this;

			that.getCouponList(this.currentTab);
			let index = this.currentTab
			let item = this.couponList[index]
			item.pageIndex = 1;
			item.loading = false;
			item.pullUpOn = true;
			item.noData = false;
			this.getCouponList(index)
			// 隐藏导航栏加载框
			uni.hideNavigationBarLoading();
			// 停止下拉动作
			uni.stopPullDownRefresh();
		},
		onReachBottom() {
			let index = this.currentTab
			if (!this.couponList[index].pullUpOn) return;
			this.getCouponList(index)
		},
		onPageScroll(e) {
			this.scrollTop = e.scrollTop;
		},
		methods: {
			change(e) {
				this.currentTab = e.index
				if (this.couponList[this.currentTab].pageIndex == 1) {
					this.getCouponList(this.currentTab)
				}
			},
			goIndex() {
				uni.switchTab({
					url: '/pages/cart/cart',
				})
			},
			couponCenter() {
				uni.navigateTo({
					url: '/pages/shopping/couponCenter/couponCenter',
				})
			},
			getCouponList(index) {
				let that = this;
				let item = this.couponList[index]
				util.request('coupon/list', {
					status: index
				}).then(function(res) {
					if (res.code === 0) {
						let couponsList = [...res.data];
						item.data = couponsList;
					}
				});
			}
		}
	}
</script>

<style>
	.tui-mtop {
		margin-top: 80rpx;
	}

	.tui-coupon-list {
		width: 100%;
		padding: 0 25rpx;
		box-sizing: border-box;
	}

	.tui-coupon-item {
		width: 100%;
		height: 210rpx;
		position: relative;
		display: flex;
		align-items: center;
		padding-right: 30rpx;
		box-sizing: border-box;
		overflow: hidden;
	}

	.tui-coupon-bg {
		width: 100%;
		height: 210rpx;
		position: absolute;
		left: 0;
		top: 0;
		z-index: 1;
	}

	.tui-coupon-sign {
		height: 110rpx;
		width: 110rpx;
		position: absolute;
		z-index: 9;
		top: -30rpx;
		right: 40rpx;
	}

	.tui-coupon-item-left {
		width: 218rpx;
		height: 210rpx;
		position: relative;
		z-index: 2;
		display: flex;
		align-items: center;
		justify-content: center;
		flex-direction: column;
		flex-shrink: 0;
	}

	.tui-coupon-price-box {
		display: flex;
		color: #58C1E7;
		align-items: flex-end;
	}

	.tui-coupon-price-sign {
		font-size: 30rpx;
	}

	.tui-coupon-price {
		font-size: 70rpx;
		line-height: 68rpx;
		font-weight: bold;
	}

	.tui-price-small {
		font-size: 58rpx !important;
		line-height: 56rpx !important;
	}


	.tui-coupon-intro {
		background: #F7F7F7;
		padding: 8rpx 10rpx;
		font-size: 26rpx;
		line-height: 26rpx;
		font-weight: 400;
		color: #666;
		margin-top: 18rpx;
	}

	.tui-coupon-item-right {
		flex: 1;
		height: 210rpx;
		position: relative;
		z-index: 2;
		display: flex;
		align-items: center;
		justify-content: space-between;
		padding-left: 24rpx;
		box-sizing: border-box;
		overflow: hidden;
	}

	.tui-coupon-content {
		width: 82%;
		display: flex;
		flex-direction: column;
		justify-content: center;
	}

	.tui-coupon-title-box {
		display: flex;
		align-items: center;
	}

	.tui-coupon-btn {
		padding: 6rpx;
		background: #FFEBEB;
		color: #58C1E7;
		font-size: 25rpx;
		line-height: 25rpx;
		display: flex;
		align-items: center;
		justify-content: center;
		transform: scale(0.9);
		transform-origin: 0 center;
		border-radius: 4rpx;
		flex-shrink: 0;
	}

	.tui-color-grey {
		color: #888 !important;
	}

	.tui-bg-grey {
		background: #F0F0F0 !important;
		color: #888 !important;
	}

	.tui-coupon-title {
		width: 100%;
		font-size: 26rpx;
		color: #333;
		white-space: nowrap;
		overflow: hidden;
		text-overflow: ellipsis;
	}

	.tui-coupon-rule {
		padding-top: 52rpx;
	}

	.tui-rule-box {
		display: flex;
		align-items: center;
		transform: scale(0.8);
		transform-origin: 0 100%;
	}

	.tui-padding-btm {
		padding-bottom: 6rpx;
	}

	.tui-coupon-circle {
		width: 8rpx;
		height: 8rpx;
		background: rgb(160, 160, 160);
		border-radius: 50%;
	}

	.tui-coupon-text {
		font-size: 28rpx;
		line-height: 28rpx;
		font-weight: 400;
		color: #666;
		white-space: nowrap;
	}

	.tui-top20 {
		margin-top: 20rpx;
	}

	.tui-coupon-title {
		font-size: 28rpx;
		line-height: 28rpx;
	}

	.tui-btn-box {
		position: absolute;
		width: 146rpx;
		height: 52rpx;
		right: 20rpx;
		z-index: 10;
	}
</style>
